Build limit datapack compatibility for 1.21+

[Dannypan]

The datapack format for overworld.json changed after 1.20.4. Because of this the included worldpainter.zip datapack no longer works for versions over 1.20.5 and it is extremely annoying having to constantly change datapacks to a suitable one, or deleting worldpainter.zip, for every little test export.

I (well, ChatGPT did most of the work...) have made up datapacks for every build limit combination possible with WorldPainter for compatibility with 1.20. I've tested some and they work with 1.21.4, but should be compatible with older versions.

Hopefully this simplifies adding compatibility for you.

all_individual_datapacks.zip